Each of us has a level of "clean" that we strive to or will accept (I think Ben used to call this the "cleanliness quotient".) I say if your water is clear and your chemistry is good, quit looking at it when you run your light! If you have trees dumping stuff into the pool, I'm afraid you'll never reach the point where the water is crystal clear at night in front of the light.
That's my opinion, anyway, for what it's worth!!
Janet
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